Search | Car Forums | Gallery | Articles | Helper | AF 350Z | IgorSushko.com | Corporate |
| Latest | 0 Rplys |
|
Show Printable Version | Email this Page | Subscribe to this Thread |
|
Thread Tools |
03-08-2009, 02:49 PM | #1 | |
AF Newbie
Join Date: Feb 2009
Location: jackson, California
Posts: 26
Thanks: 0
Thanked 0 Times in 0 Posts
|
would vortec heads be a good idea?
I gotta 1970 350 bored 20 over with flattop pistons a lunatti bracketmaster cam with 480lift and camelhump heads.I was thinking of changing to vortec heads and intake to gain some horsepower.Think its worth it and can I just bolt them on and go?Any answers would be very helpful,thanx guys
|
|
03-09-2009, 08:28 AM | #2 | |
AF -Advisor
Join Date: Feb 2004
Location: Chesterfield, Virginia
Posts: 2,549
Thanks: 0
Thanked 6 Times in 5 Posts
|
Re: would vortec heads be a good idea?
You would realize a slight gain if you changed nothing BUT the heads. Your intake won't "fit", so you'll need a new one. Might as well upgrade.
Your compression ratio is now too high for 93 octane gas. Is this a race engine or a street engine? Vortec heads won't "help" that situation any, either. Jim |
|
06-27-2009, 07:14 PM | #3 | |
AF Newbie
Join Date: Jun 2009
Location: travis afb, California
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
|
Re: would vortec heads be a good idea?
well im assuming if hes driving the car right now that the compression isnt that high, i run flat tops and vortecs on my nova with 91 and its fine, mind you that i run a large cam with plenty of overlap, or should a say a small cam, under .500. just make sure you retard the timing to compensate, run a cranking compression test and get back to us with the number, my guess is right around 200psi. and a slight improvement might be and understatement, vortec heads are the best gen 1 stockers availible. camel humps are just too out of date and shouldnt be used. if your really worried about compression that much get a set of aluminum heads, theyre on the cheap side now and you can afford to run more compression because of better heat disapation.
|
|
|
POST REPLY TO THIS THREAD |
|
|